#include<stdio.h>
int main()
{
	int i = 0;
	int number = 0;
	int res = 0; 
	scanf("%d",&number);
	for(i = 0;i < number;i++)
	{
		res = res + (i+1);
		printf("i=%d,res=%d\n",i+1,res); 
		 
	} 
	return 0;
}
